Home / 5,087.28-7,634.16-2,778.24

Finding the Fourth Proportional to 5,087.28, 7,634.16 and 2,778.24

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Solution

The fourth proportional to 5,087.28, 7,634.16 and 2,778.24 is: 4,169.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.28 : 7,634.16 = 2,778.24 : x
  2. Step 2: Convert to fraction form
    5,087.28/7,634.16 = 2,778.24/x
  3. Step 3: Cross multiply
    5,087.28x = 7,634.16 × 2,778.24
  4. Step 4: Simplify right side
    5,087.28x = 21,209,528.68
  5. Step 5: Solve for x
    x = 21,209,528.68/5,087.28
  6. Step 6: Final answer
    x = 4,169.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.